YongNuo Yongnuo YN560-TX Wireless Flash Controller YN-560-TX for Nikon D7200... Remote Control of Flash output and Zoom per group, up to 6 groups, A/B/C/D/E/F 16 Channels 2,4GHz 100M Range Compatible with YN-560 III, RF-602, RF-603, RF-603 II Zoom Head Control and Fast Setting Interface Large Clear LCD Screen and Shutter Interface: 2.5mm shutter interface You can use it not only as flash controller function, but aslo use it as remote control function.